Pressure equalization valve for a cold room



1. Pressure equalization valve for a cold room

FIG. 1.1 is a top plan view of a pressure equalization valve for a cold room showing my new design;

FIG. 1.2 is a side elevation view thereof;

FIG. 1.3 is a front side perspective view thereof; and

FIG. 1.4 is a front elevation view thereof. 

CLAIM The ornamental design for a pressure equalization valve for a cold room, as shown and described. 